Styrofoam Cup

Recording identifiers

ISRC

QZK6Q2067657

Release date of the album this recording appears on

2020-10-05

CopyrightID (CopyrightChains transaction hash)

0x98b1a4caa376d280ecf300fa66a6c7413235389df9416d2b149d5c9c0011d289

Copyright registration time

2026-06-07T11:03:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:ca48f50492b28450b8547f37f822e687c29169ee5e6b5d4bbf0224f1e805319d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QZK6Q2067657

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.